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Commit 8606813a authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: tcrypt - Allow speed testing of arbitrary hash functions 



This patch allows the testing of arbitrary hash functions specified
by the alg module parameter by using them in mode 300 (for sync hash)
and mode 400 (for async hash).

For example, you could do
	modprobe tcrypt mode=300 alg='vmac(aes)'

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent af8e8073

crypto/tcrypt.c

+20 −12
Original line number Diff line number Diff line
@@ -1225,15 +1225,22 @@ static inline int tcrypt_test(const char *alg) 
	return ret;

}



static int do_test(int m)

static int do_test(const char *alg, u32 type, u32 mask, int m)

{

	int i;

	int ret = 0;



	switch (m) {

	case 0:

		if (alg) {

			if (!crypto_has_alg(alg, type,

					    mask ?: CRYPTO_ALG_TYPE_MASK))

				ret = -ENOENT;

			break;

		}



		for (i = 1; i < 200; i++)

			ret += do_test(i);

			ret += do_test(NULL, 0, 0, i);

		break;



	case 1:
@@ -1752,6 +1759,11 @@ static int do_test(int m) 
		break;



	case 300:

		if (alg) {

			test_hash_speed(alg, sec, generic_hash_speed_template);

			break;

		}



		/* fall through */



	case 301:
@@ -1838,6 +1850,11 @@ static int do_test(int m) 
		break;



	case 400:

		if (alg) {

			test_ahash_speed(alg, sec, generic_hash_speed_template);

			break;

		}



		/* fall through */



	case 401:
@@ -2127,12 +2144,6 @@ static int do_test(int m) 
	return ret;

}



static int do_alg_test(const char *alg, u32 type, u32 mask)

{

	return crypto_has_alg(alg, type, mask ?: CRYPTO_ALG_TYPE_MASK) ?

	       0 : -ENOENT;

}



static int __init tcrypt_mod_init(void)

{

	int err = -ENOMEM;
@@ -2144,10 +2155,7 @@ static int __init tcrypt_mod_init(void) 
			goto err_free_tv;

	}



	if (alg)

		err = do_alg_test(alg, type, mask);

	else

		err = do_test(mode);

	err = do_test(alg, type, mask, mode);



	if (err) {

		printk(KERN_ERR "tcrypt: one or more tests failed!\n");